Always pants!! They will hate the feeling of being wet and also in time learn the act of pulling them up and down. When out or at nursery you need pants so start this off as the norm. Go to a shop and chose some fun pants and make a thing of it. Get them slightly bigger so easy to get on and off for them
We went straight into pants x
We did bare bum for about 4 days then commando for around a week
Oh crap! Said bare bum for a few days then commando for a month. My son had a huge fit the second day, went into his room and got a pair of shorts from his drawer and put them on himself. So we only did one day bare bum then straight to commando for the rest of his week off When he went back to daycare the next week we did boxers so they wouldn't feel like a diaper. He's not allowed to go commando at daycare.